Error SNTL_LG_MASTER_FEATURE_NOT_FOUND when creating a new HASP HL licence using the API

Hello,

I am trying to build a C/C++ program that will create licences for new HASP keys using the Sentinel LDK API.

I have prepared the code following the samples and I believe that it should work as intended. However,  when I am trying to apply the licence using

sntl_lg_generate_license()

I receive the error  SNTL_LG_MASTER_FEATURE_NOT_FOUND.

The PC in which the code is running has the new HASP HL and the Master Vendor keys attached. As far as I know, there is no Developer key available to us, as the protection framework could have been purchased a long time ago (I believe it was Aladdin at the time).

Anyone has any ideas about this?

Thank you very much.